EP2147762A1 - Plaque en matériau dérivé du bois - Google Patents

Plaque en matériau dérivé du bois Download PDF

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Publication number
EP2147762A1
EP2147762A1 EP09009123A EP09009123A EP2147762A1 EP 2147762 A1 EP2147762 A1 EP 2147762A1 EP 09009123 A EP09009123 A EP 09009123A EP 09009123 A EP09009123 A EP 09009123A EP 2147762 A1 EP2147762 A1 EP 2147762A1
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EP
European Patent Office
Prior art keywords
wood
edge region
substance
edge
material board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09009123A
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German (de)
English (en)
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EP2147762B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flooring Technologies Ltd
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Flooring Technologies Ltd
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Publication date
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Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to PL09009123T priority Critical patent/PL2147762T3/pl
Publication of EP2147762A1 publication Critical patent/EP2147762A1/fr
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Publication of EP2147762B1 publication Critical patent/EP2147762B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity

Definitions

  • the invention relates to a wood-based panel having a peripheral edge region and an inner region surrounded by the edge region. According to a second aspect, the invention relates to a method for producing a floor panel.
  • Wood-based panels for example HDF panels (high-density fiber board), are used, for example, in the production of floor panels or laminate floors.
  • floor panels In the manufacture of floor panels must be introduced into the wood-based panel profiles, for example, are milled, so that two floor panels can be connected together. It is desirable to make floor panels particularly easy, as this requires less raw material and leads to easier to transport and handle floor panels.
  • the reduction of the material thickness of the wood-based panel limits, since the profiles must safely absorb the loads that arise when using the floor panels.
  • the invention has for its object to achieve lower densities and / or lower densities without the strength of a click connection suffers from made of wood-based panel floor panels suffers.
  • the invention solves the problem by a generic wood-based panel, in which the strength of the edge region is increased relative to the inner region.
  • the edge region is to be understood in each case as the region in which the profiles for connecting the individual elements are later. This means that there is a plurality of impregnated areas on the output format, which may have a much larger dimension.
  • this is generally the edge region / edge regions which are created by separating a large-format plate into the resulting blanks.
  • the edge region over a full thickness expansion of the wood-based panel is stabilized with a postcrosslinking substance.
  • the invention solves the problem by a method for producing a wood-based panel with the step of introducing a post-crosslinking substance in an edge region of the wood-based panel, so that the post-crosslinking substance in the wood-based panel cross-links and stabilizes the edge region.
  • a method for producing a floor panel comprising the steps of: (a) producing a wood-based panel according to the invention and (b) introducing a profile into the edge area, wherein each point of the profile adjoins a layer of material having a predetermined minimum thickness.
  • An advantage of the invention is that wood-based panels can be used for the production of floor panels and laminate floors, which have a lower density. This means that the production facilities that produce the wood-based panels can produce much faster and more cost-effectively. Furthermore, for a consumer of the floor panel and the wood-based panel transport and handling are much more pleasant.
  • wood-based panels according to the invention can be produced with existing production facilities.
  • a short-cycle coating is possible.
  • Another advantage is that even with reduced thickness or reduced density of the wood-based panel mechanically strong connections between two floor panels made of wood-based panels according to the invention are possible. It is also advantageous that the postcrosslinking substance, which increases the strength of the edge region, as a rule also acts as a water repellent, so that swelling in the edge region is avoided.
  • a post-crosslinking substance is understood as meaning a substance which reacts chemically after introduction into the edge region.
  • the post-crosslinking substance polymerizes or reacts with constituents of the wood-based panel, for example with wood chips.
  • the feature that the postcrosslinking substance increases the strength of the edge region is understood in particular to mean that a transverse tensile strength of the edge region after introduction of the postcrosslinking substance is significantly higher than before incorporation of the postcrosslinking substance and subsequent postcrosslinking.
  • post-crosslinking it is possible, but not necessary, for post-crosslinking to be supported, for example by introducing microwave radiation, heat or the like.
  • An edge region is understood in particular to be a volume section of the wood-based panel which extends along the edge over a complete thickness of the wood-based panel.
  • the edge region has an extension of more than 1 cm from a peripheral edge of the wood-based panel. The wider the edge area, the cheaper the strength properties of the wood-based panel affected. At the same time, however, the costs for the postcrosslinking substance are increasing.
  • the edge region is thus advantageously chosen to be so wide that further broadening of the edge region does not significantly increase the strength of a profile introduced for producing a floor panel.
  • the edge region has a content of postcrosslinked substance such that its transverse tensile strength exceeds 2.3 N / mm 2 , in particular 2.5 N / mm 2 .
  • Postcrosslinking substances have proven to be particularly suitable which consist of at least one compound which has NCO groups, a relative proportion of the NCO groups in a molar mass of the compounds being more than 15%.
  • the NCO groups or cyan groups of a molecule greatly contribute to a high strength of the post-crosslinked substance.
  • the average relative proportion of NCO groups in the molar mass of the compounds is calculated by dividing the molecular weight of the NCO group by the molecular weight of the entire molecule. This procedure is carried out for all compounds present in the postcrosslinking substance and from the respective results a mean weighted with the molar portion of the respective compound is calculated.
  • isocyanate prepolymers Particularly suitable as postcrosslinking substances, isocyanate prepolymers, polyurethane polymers and / or epoxy resins have been found. These compounds are present in the finished wood-based panel as polymers, but usually they are introduced as prepolymers in the wood-based panel.
  • edge region has a content of postcrosslinking substance of more than 500 g / m 2 . It has been found that a content of postcrosslinking substance in the edge region of more than 1500 g / m 2 generally brings no further advantages.
  • the bulk density in the edge region has a peripheral edge bulk density which is greater than an inside bulk density in the inner region.
  • the edge area bulk density is greater than 8% greater than the interior bulk density.
  • the edge area density is preferably above 800 kg / m 3 .
  • the consumption of postcrosslinking substance or of prepolymer is particularly low if substantially only the edge region contains postcrosslinking substance.
  • This is to be understood as meaning that the concentration of a postcrosslinking substance in the edge area is significantly higher than in the interior area, for example more than 5 times as high.
  • it is also possible to treat the interior area with postcrosslinked substance, but this is not necessary.
  • a floor panel is obtained from the wood-based panel, in which a profile is introduced into the edge area for connection to other floor panels, in particular milled in and / or embossed.
  • the postcrosslinking substance d. H. the substance that polymerizes in the wood-based panel, for example, or combines with other ingredients, sucked under the influence of negative pressure in the wood-based panel.
  • the post-crosslinking substance is applied, for example, on one side of the wood-based panel. On the opposite side is a squeegee, which sucks the applied post-crosslinking substance in the wood-based panel.
  • the postcrosslinked substance is applied exclusively in the edge region.
  • the wood-based panel may be an MDF or HDF board.
  • the floor panel is preferably designed for glueless connection by means of tongue and groove.
  • FIG. 1 shows a first wood-based panel 10.1 and a second material panel 10.2, which have been prepared by sawing a total wood-based panel along a cutting line 12.
  • the wood-based panel 10.1 has an edge region 14.1, which extends along the cutting line 12 and extends over a full thickness extent along a thickness D of the wood-based panel 10.1.
  • the edge region 14.1 has a width B of, for example, 1 to 3 cm.
  • the wood-based panel 10.2 has an edge region 14.2, which also adjoins the cutting line 12 and has the same width B. Beyond the edge regions 14.1, 14.2 extend respective inner regions 16.1 and 16.2 of the wood-based panels 10.1 and 10.2.
  • the edge regions 14.1, 14.2 contain a postcrosslinking substance, which gives them a higher strength in comparison to the inner regions 16.1, 16.2.
  • the postcrosslinking substance is a polyurethane prepolymer which has bonded in the marginal areas 14.1., 14.2 with other constituents of the wood-based panels 10.1 and 10.2 during polymerization.
  • the postcrosslinking substance is applied to, for example, an upper side 18, for example brushed, sprayed, suspended or rolled up.
  • an upper side 18 for example brushed, sprayed, suspended or rolled up.
  • a squeegee with their seals and generated in FIG. 1 below the edge region 14.1, 14.2 a negative pressure.
  • the postcrosslinking substance is chosen so that it crosslinks after introduction into the edge region 14.1, 14.2 and increases the strength.
  • the polyurethane prepolymer is introduced with a raw areal density of 750 kg / m 3 .
  • the content of NCO groups is more than 20%, resulting in a particularly large increase in strength results.
  • the edge region 14.1, 14.2 has introduced so that as little as possible polyurethane prepolymer must be used, a width of, for example less than 10 cm, especially less than 5 cm.
  • a transverse tensile strength R transversely By introducing the postcrosslinking substance, in the present example in the form of the polyurethane prepolymer, a transverse tensile strength R transversely to more than 2.5 N / mm 2 .
  • the transverse tensile strength is the strength in the transverse direction, which is indicated by the arrow Q.
  • the transverse tensile strength R transverse is an important measure of an achievable strength of a profile milled into the Rarnd region 14.1, 14.2 of a floor panel produced from the wood-based panel.
  • the transverse tensile strength R transverse due to the postcrosslinking substance By increasing the transverse tensile strength R transverse due to the postcrosslinking substance, it is possible to choose a gross density in the inner region ⁇ raw, inside of less than 830 kg / m 3 , without resulting disadvantages in the subsequent processing.
  • the bulk density in the edge area ⁇ raw, edge can still be 850 to 900 per m 3 in order to increase the transverse tensile strength R across .
  • FIG. 2 shows floor panels 20.1, 20.2, which are made of the corresponding wood-based panels 10.1 and 10.2 by introducing respective profiles 22.1, 22.2.
  • the profiles 22.1, 22.2 are for example milled or embossed.
  • the wood material plate 10 from which the floor panels are manufactured 20.1, 20.2 can be lowered in its central medium density P, handling and transportation of the floor panel 20 can be facilitated, which is consumer-friendly. Furthermore, a reduction in the density leads to improved behavior with regard to footfall and room noise when walking.
  • the wood-based panels 10.1, 10.2 or the entire material panel can be easily produced by means of short-cycle coating, the first production step in the manufacture of floor panels. Even with the raw densities ⁇ raw specified above, further KT coatings are possible. Optionally, during production, production parameters such as pressure or temperature must be adjusted.
  • the postcrosslinking substance By introducing the postcrosslinking substance, moreover, the water absorption capacity of the edge region 14.1, 14.2 and thus of the profile 22.1, 22.2 is reduced. It should be noted, however, that the introduction of the postcrosslinking substance is not a surface impregnation of the profile, since impregnating agents have no strength-increasing effect and serve only to repel water.
  • Further suitable postcrosslinking substances are isocyanate polymers, polyurethane polymers and / or epoxy resins, it also being possible to use mixtures.
EP09009123.2A 2008-07-24 2009-07-13 Panneau de plancher d'une plaque de matériau bois et procédé de fabrication Active EP2147762B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09009123T PL2147762T3 (pl) 2008-07-24 2009-07-13 Panel podłogowy z płyty z tworzywa drzewnego i sposób wytwarzania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008034749A DE102008034749B3 (de) 2008-07-24 2008-07-24 Holzwerkstoffplatte

Publications (2)

Publication Number Publication Date
EP2147762A1 true EP2147762A1 (fr) 2010-01-27
EP2147762B1 EP2147762B1 (fr) 2013-10-23

Family

ID=41226607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09009123.2A Active EP2147762B1 (fr) 2008-07-24 2009-07-13 Panneau de plancher d'une plaque de matériau bois et procédé de fabrication

Country Status (4)

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EP (1) EP2147762B1 (fr)
DE (1) DE102008034749B3 (fr)
ES (1) ES2439260T3 (fr)
PL (1) PL2147762T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2537653A1 (fr) * 2011-06-21 2012-12-26 Flooring Technologies Ltd. Procédé de fabrication d'un panneau en bois
EP2623282A1 (fr) * 2012-01-31 2013-08-07 Falquon GmbH Procédé d'imprégnation de plaques de matière première
WO2016182896A1 (fr) 2015-05-12 2016-11-17 Unilin North America, Llc Panneau de plancher et procédé de fabrication desdits panneaux de plancher

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693144B1 (fr) 2011-01-06 2021-05-05 Flooring Technologies Ltd. Procédé et dispositif de traitement partiel de la surface ou de la coupe transversale complète d'une plaque en matériau dérivé du bois ou d'un non-tissé en matériau dérivé du bois précomprimé ou d'un gâteau en fibre de bois
DE102015119546A1 (de) 2015-11-12 2017-05-18 Flooring Technologies Ltd. Holzwerkstoffplatte aus einem Holz-Kunststoff-Verbundwerkstoff und Isocyanat, und ein Verfahren zu deren Herstellung
EA202092299A1 (ru) 2018-05-02 2021-02-10 Ксило Технологис Аг Способ и устройство для изготовления плиты, предназначенной для изготовления панелей, плита для изготовления панелей, способ и устройство для изготовления панелей и панель, изготавливаемая этим способом
US11518061B2 (en) 2018-05-02 2022-12-06 Xylo Technologies Ag Method and apparatus for producing a board

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133920A (en) * 1975-03-07 1979-01-09 Keller & C. Aktiengesellschaft Method for reinforcing the edge region of a plate formed of a porous material by means of a reinforcement agent
US4301187A (en) * 1979-09-26 1981-11-17 Jack A. Burch Ltd. Panel
EP0903451A2 (fr) * 1997-09-22 1999-03-24 Unilin Beheer B.V. Elément de plancher, procédé pour la fabrication d'un tel élément de plancher et dispositif utilisé avec
WO2002024421A1 (fr) * 2000-09-22 2002-03-28 Fritz Egger Gmbh & Co. Procede d'impregnation d'un bord lateral d'une piece en materiau derive du bois
US6451384B1 (en) * 2001-07-27 2002-09-17 H.B. Fuller Licensing & Financing Inc. Method of tempering fiberboard doorskin using liquid thermosets
DE102006004632A1 (de) * 2006-01-31 2007-08-02 Neumann, Markus, Dipl.-Ing. Verfahren zur Vergütung von Holzfaserdämmplatten, vergütete Holzfaserdämmplatten sowie Vorrichtung zum Vergüten von Holzfaserdämmplatten

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133920A (en) * 1975-03-07 1979-01-09 Keller & C. Aktiengesellschaft Method for reinforcing the edge region of a plate formed of a porous material by means of a reinforcement agent
US4301187A (en) * 1979-09-26 1981-11-17 Jack A. Burch Ltd. Panel
EP0903451A2 (fr) * 1997-09-22 1999-03-24 Unilin Beheer B.V. Elément de plancher, procédé pour la fabrication d'un tel élément de plancher et dispositif utilisé avec
WO2002024421A1 (fr) * 2000-09-22 2002-03-28 Fritz Egger Gmbh & Co. Procede d'impregnation d'un bord lateral d'une piece en materiau derive du bois
US6451384B1 (en) * 2001-07-27 2002-09-17 H.B. Fuller Licensing & Financing Inc. Method of tempering fiberboard doorskin using liquid thermosets
DE102006004632A1 (de) * 2006-01-31 2007-08-02 Neumann, Markus, Dipl.-Ing. Verfahren zur Vergütung von Holzfaserdämmplatten, vergütete Holzfaserdämmplatten sowie Vorrichtung zum Vergüten von Holzfaserdämmplatten

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2537653A1 (fr) * 2011-06-21 2012-12-26 Flooring Technologies Ltd. Procédé de fabrication d'un panneau en bois
EP2628580A1 (fr) * 2011-06-21 2013-08-21 Flooring Technologies Ltd. Panneau en bois
EP2623282A1 (fr) * 2012-01-31 2013-08-07 Falquon GmbH Procédé d'imprégnation de plaques de matière première
EP3910134A1 (fr) 2015-05-12 2021-11-17 Aladdin Manufacturing Corporation Procede de fabrication de panneaux de plancher
EP3916171A1 (fr) 2015-05-12 2021-12-01 Aladdin Manufacturing Corporation Panneau de plancher
US10655338B2 (en) 2015-05-12 2020-05-19 Unilin North America, Llc Floor board and method for manufacturing such floor boards
EP3683382A1 (fr) 2015-05-12 2020-07-22 Aladdin Manufacturing Corporation Panneau de plancher
DE202016009043U1 (de) 2015-05-12 2021-08-26 Aladdin Manufacturing Corporation Fußbodendiele
DE202016009051U1 (de) 2015-05-12 2021-10-07 Aladdin Manufacturing Corporation Fußbodendiele
DE202016009050U1 (de) 2015-05-12 2021-10-07 Aladdin Manufacturing Corporation Fußbodendiele
DE202016009059U1 (de) 2015-05-12 2021-10-18 Aladdin Manufacturing Corporation Fußbodendiele
EP3910133A1 (fr) 2015-05-12 2021-11-17 Aladdin Manufacturing Corporation Panneau de plancher
WO2016182896A1 (fr) 2015-05-12 2016-11-17 Unilin North America, Llc Panneau de plancher et procédé de fabrication desdits panneaux de plancher
EP3916170A1 (fr) 2015-05-12 2021-12-01 Aladdin Manufacturing Corporation Panneau de plancher
EP3473783A1 (fr) 2015-05-12 2019-04-24 Unilin North America, LLC Panneau de plancher et procédé de fabrication desdits panneaux de plancher
EP3960958A1 (fr) 2015-05-12 2022-03-02 Aladdin Manufacturing Corporation Panneau de plancher et procédé de fabrication desdits panneaux de plancher
US11473315B2 (en) 2015-05-12 2022-10-18 Aladdin Manufacturing Corporation Floor board and method for manufacturing such floor boards
US11643823B2 (en) 2015-05-12 2023-05-09 Aladdin Manufacturing Corporation Floor board and method for manufacturing such floor boards
US11668106B2 (en) 2015-05-12 2023-06-06 Aladdin Manufacturing Corporation Floor board
US11719003B2 (en) 2015-05-12 2023-08-08 Aladdin Manufacturing Corporation Floor board and method for manufacturing such floor boards
US11739537B2 (en) 2015-05-12 2023-08-29 Flooring Industries Limited, Sarl Floor board and method for manufacturing such floor boards
US11739539B2 (en) 2015-05-12 2023-08-29 Flooring Industries Limited, Sarl Floor board and method for manufacturing such floor boards
US11746537B2 (en) 2015-05-12 2023-09-05 Flooring Industries Limited, Sarl Floor board and method for manufacturing such floor boards
US11814851B2 (en) 2015-05-12 2023-11-14 Flooring Industries Limited, Sarl Floor board and method for manufacturing such floor boards

Also Published As

Publication number Publication date
DE102008034749B3 (de) 2010-01-28
ES2439260T3 (es) 2014-01-22
PL2147762T3 (pl) 2014-03-31
EP2147762B1 (fr) 2013-10-23

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